A particle travels half a distance at 12km/h and the remaining half at 18kmh Calculate the average speed.
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Answered by
12
total distance = s
t1 = (s/2)/12; t2 = (s/2)/18
avg v = s/(t1+t2) = 7.2 m/s
t1 = (s/2)/12; t2 = (s/2)/18
avg v = s/(t1+t2) = 7.2 m/s
dushmanta:
2×12×18/18+12= 14.4 km/h
Answered by
1
Answer:
but the answer in our textbook is 14.4km/h
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